Driving mechanism.



J. J, HESSE & L. STANEK.

DRIVING MECHANISM.

APPLICATION FILED OCT. 29. 1914.

Llfifig, Patented Dec. 7, 1915.

& n WW 72% o 75 77 a o o E o B w 26 2\F g 3 o Z0 Z1 o A 73 A E 66S.ln/venzo 7";

ca'wngmm PLANOKSJRAPH CO.,WA5HINGTON. n. c.

pnrrnn s'rarns rarnnr onrron.

JOHN J". HESSE AND LUCIAN STANEK, OF BOSTON, MASSACHUSETTS, ASSIGNORS TOHESSE MOTION PICTURE MACHINE COMPANY, A CORPORATION OF MASSACHU- SETTS.

DRIVING MECHANISM.

Specification of Letters Patent.

Patented Dec. *7, 1915.

Application filed October 29, 1914. Serial No. 869,336.

To all whom it may concern:

Be it known that we, JOHN J. Hnssn and LUCIAN STANEK, citizens of theUnited States, residing at Boston, in the county of Suffolk and State ofMassachusetts, have invented new and useful Improvements in DrivingMechanism, of which the following is a specification.

This invention relates to apparatus for feeding motion picture films andhas for its object to provide a Simple, positive and accurate meansadapted to rapidly advance the film consisting of a series of picturesand intermittently present successive pictures in said series to theprojecting instrumentalities connected with the apparatus.

The object of the invention is further to provide means for maintainingthe pictures on said film stationary in front of said projectinginstrumentalities and for a predetermined period.

Another object of the invention is to provide means for adjusting saidlocking means whereby any looseness or play, due to the wearing of theseveral parts of the device, may be removed.

The invention consists in the combination and arrangement of parts setforth in the following specification and particularly pointed out in theclaims.

Referring to the drawings: Figure 1 is a vertical section, partly inelevation, taken through a device embodying our invention, certainunimportant details of said device being broken awayto save space in thedrawings. Fig. 2 is a side elevation of the device illustrated in Fig. 1looking toward the right in said figure. Fig. 3 is a section taken onthe line 3-3 of Fig. 1.

Like numerals refer to like parts throughout the several views of thedrawings.

In the drawings, 5 represents a frame upon which are supported theseveral elements of the device embodying our invention. Upon the frame 5is a shaft 6 journaled to rotate in bearings 77, said shaft havingsecured thereon a sprocket 8 constructed to engage the perforations inthe film and advance the pictures constituting said film into the rangeof the projected rays of light. The shaft 6 constitutes the drivenmember of a pair of shafts mounted in said frame 5. A shaft 9 ispreferably arranged below the shaft 6 and preferably one of the pair ofshafts and the driving shaft of said pair, said driving shaft receivlnga continuous rotary motion from any desired source not shown in thedrawings.

An intermittent rotary motion is imparted to the shaft 6 from the shaft9 by means preferably consisting of a disk 10 having a hub 11 arrangedto receive one end of the shaft 6. A series of laterally disposedprojections or pins 12 are arranged upon one face of the disk 10. Abifurcated member or actuator 13 is secured to the end of the shaft 9adjacent the disk 10, said actuator 13 having a projection or tooth 1 1at one side thereof within the end of which is a notch or recess 15suitable to receive one of the pins 12. As the shaft 9 is rotated theactuator 13 is also rotated, by reason of its being secured thereto, andcauses the side of said projection 14 to engage one of the pins 12 andthe recess 15 to receive the next pin in the series to that engaged bythe side of said projection, thus advancing the disk the distance equalto that of two pins and as there are preferably 8 pins the disk 10 willbe rotated one-quarter of a turn, which distance is sufficient toadvance one film to the projecting instrumentalities of the apparatus.It will be evident that but a small portion of each rotation of theshaft 9, or at least the actuator 13 secured to said shaft, will berequired to operate the disk 10 and as said projection 14: escapes fromthe last pin engaged thereby, said disk 10, so far as the actuator 13 isconcerned, will be free to rotate. 1

It is essential in this particular type of apparatus that the drivenmember be prevented from rotating between the successive intermittentrotary movements thereof, and.

locking means have been provided for accomplishing this result whichpreferably consists of a rotary member or ball 16 arranged in a suitablerecess 17 formed in a detachable portion 25 of the frame 5, preferablybeneath the driven member or shaft 6. Said ball is permitted to movesubstantially along a plane extending from the axis of the shaft 6 tothe axis of the shaft 9. A groove 18 is formed about the periphery ofthe shaft or driven member 6, preferably in the outer surface of the hub11 within I which groove said ball is adapted to rotate.

A plurality of recesses 19 are arranged parallel therewith andconstitutes the other about said, driven member along the groo 3.1-1

. ator.

' the portion 25 of said frame.

18, said recesses being capable of receiving a portion of the ball 16 toan extent sufliing a rotatable engagement with the driving member 9,preferably through the instrumentalities of a collar 22 whichconstitutes the hub for the actuator 13. A groove 23 is also provided inthe periphery of the eollar 22 and in this groove the ball 20 has itscontact with said collar; The groove 23 has a depressed portion 24extending circumferentially thereof and constituting a cam, a distancesufiicient to permit the ball 20 to be depressed during the time theactuatoi- 13 is engaging the pins 12, preferably one-quarter of arotation of said actu- As the ball 20 is moved radially relatively tothe axis of the shaft 9, the ball 16 being operatively' connectedtherewith would likewise be moved radially relatively to the member 6and the depression 24 in the groove 23 is timed'so that said radialmovement of the ball 16 will take place when the recesses 19 are aliningwith the recess 17. Means are also provided for adjusting the balls 16and 20 toward and away from each other, thus to eliminate any loose nessor play produced by the wearing away of the balls and their cooperatingmembers. To accomplish this result a Wedge-shaped separator 26 isinterposed between the balls 16 and 17 and arranged to be movedsubstantially at right angles to the plane passing through the axes ofthe members 6 and 9, said member 26 being pivotally secured at 27 to aslide 28 arranged to reciprocate in The pivot 27 of said member permitssaid separator to move with the balls when the same are actuated to lockthe member 6 against rotation. To adjust the slide 28 a nut 29 is 1'0-tatablyarranged in a portion of the frame 5 and has screw-threadedengagement with a threaded stem 30, forming a part of the slide 28, andby the rotation of the nut 29, said slide will be rotated to force theseparator 26 between the balls or withdraw the same therefrom.

The general operation of the apparatus hereinbefore specificallydescribed is as follows: A continuous rotary motion is parted to theshaft '9, which motion is transmitted "intermittently through theactuator 13 and disk 10 to the driven member or shaft 6. upon which thefilm sprocket '8 is fast, thus moving the film to successively presentthe pictures thereon to the projecting apparatus. As the shaft 9 isrotated the elevated and depressed portions of the groove 23 arealternately presented to the ball 20, thus causing said ball to be movedradially relatively to the shaft 9, likewise causing the ball 16,through the separator 26, to be i moved radially relatively to the shaft6 and at the proper time to enter and be withdrawn from the recesses 19and thereby alternately lock and unlock said member at the proper timesin its operation.

By means of a sensitive adjusting means for the Separator 26 it will beobvious that all excessive movements of the balls or driven or drivingmembers relatively to each other may be quickly and easily removed andthe coiiperating parts always maintained at the highest point ofefliciency, while at the same time the driven and driving members will.be retained in their proper alinement by means of the balls 16 and 20and their cooperating grooves, which prevent the slightest longitudinalmovement of either of said members relatively to the other.

Having thus described our invention what we claim and desire by LettersPatent to secure is:

1. An apparatus of the class described having, in combination, a drivenmember provided with a recess in its periphery, means for imparting anintermittent movement to said driven member, a ball adapted to entersaid recess and lock said driven member against rotation, and meansadapted to successively move said ball into said recesses and permit thesame to withdraw therefrom.

2. An apparatus of the class described having, in combination, a drivenmember provided with a peripheral recess, a driving member adapted toimpart an intermittent movement to said driven member, a ball adapted toenter said recess and lock said driven member against rotation, and acam .on said driving member adapted to move said ball into said recess.

3. A device of the class described having, in combination, a drivenmember, a driving 'member arranged to impart an intermittent drivingmember arranged to impart an intermittent rotary motion to said drivenmember, a ball engagmg the periphery of each of said members, saiddriven member having a recess in its periphery, adapted to receive aportion of the ball engaging said periphery, means adjustably arrangedbetween and in engagement with the balls engaging said peripheries, saidmeans adapted to separate said balls, and means on said driving memberadapted to actuate said balls to lock said driven member againstrotation.

5. A device of the class described having, in combination, a drivenmember, a driving member adapted to impart an intermittent rotary motionto said driven member, said driven member having a groove arranged aboutthe periphery thereof, a ball arranged to engage said driven memberwithin said groove, said driven. member also having a plurality ofrecesses arranged at given points along said groove adapted to receiveportions of said ball, and means actuated by said driving member adaptedto cause said ball to successively enter said recesses and preventmovement of said driven member while in said recesses.

6. ill device of the class described having, in combination, a drivenmember, a driving member arranged to impart an intermittent rotarymotion to said driven member, said driven member having a plurality ofrecesses formed about its periphery, a rotary locking member arrangedintermediate of the peripheries of said driven member and said drivingmember and adapted to be moved to successively enter the recesses insaid driven member and while therein to lock said member againstrotation, and means formed upon the periphery of said driving memberadapted. to move said rotary lockin g member.

7. A device of the class described having,

in combination, a driven member, a series of pins on said driven member,a rotatable bifurcated actuator arranged to engage said pins andintermittently rotate said driven member, and means adapted to lock saiddriven member against rotation between the movements imparted thereto bysaid actuator.

S. A device of the class described having, in combination, a drivenmember, a driving member arranged to impart an intermittent rotarymotion to said driven member, said driven member being provided with anannular groove extending about its periphery, said driven member havinga plurality of recesses arranged along said groove, said driving memberalso having an annular groove in its periphery, a portion ofsaid groovebeing depressed, a ball adapted to engage said driven member within itsgroove, and a second ball adapted to engage said driving member withinits groove, said balls adapted to be actuated during the presentation ofthe groove and depressed portion of the groove in said driving memberthereto to successively enter and be removed from the recesses in saiddriven member, whereby said driven member may be prevented from rotatingbetween the successive intermittent rotary movements thereof.

9. An apparatus of the class described having, in combination, a pair ofparallelly disposed rotary members, means arranged to impart anintermittent rotary motion to one of said members from the other of saidmembers, a disk secured to the driven member of said. pair of parallellydisposed members, a series of laterally disposed projections on saiddisk, a bifurcated actuator secured to the driving member oi? said pairof parallelly disposed members, said actuator adapted to cooperate withsaid projections and rotate said disk a portion of a rotation, said diskhaving a groove formed therein, a ball disposed intermediate saidparallelly disposed members and movable along a plane containing theaxes oi said members, said ball adapted to rotate in said groove, saiddisk also having a plurality of recesses ar ranged along said groove,and means adapted to move said ball during the rotation of said drivenmember successively into said recesses to prevent the rotation of saiddriven member between the successive intermittent movements thereof.

10. A device of the class described having, in combination, a drivenmember provided with a groove extending about its periphery, said drivenmember also having a plurality of recesses disposed along said groove, adriving member arranged to impart an intermittent rotary motion to saiddriven member, said driving member also having a groove extending aboutits periphery and a depression extending along a predetermined portionof said groove, a pair of balls interposed between said driven anddriving members and adapted to engage said grooves and to be moved bythe alternate presentation of the elevated and depressed portions of thegroove in said driving member successively into and out of the recessesin said driven member, and means for adjusting said halls toward andaway from each other.

11. A. device of the class described having, in combination, a drivenmember provided with a groove extending about its periphery, said drivenmember also having a plurality of recesses disposed along said groove, adriving member arranged to impart an intermittent rotary motion to saiddriven member, said driving member also having a groove extending aboutits periphery and a depression extending along a predetermined portionof said groove, a pair oi balls interposed between said driven anddriving members and adapted to engage said groove and to be moved by thealternate presentation of the elevated and depressed portions oi": thegroove in said driving member successively &

into and out of the recesses in said driven a member, and a Wedgeadapted to be moved betWeen said balls and move said balls away fromeach other.

12. An apparatus of the class described having, in combination, a drivenmember, a driving member adapted to impart an intermittent rotary motionto said driven member, said driven member having a groove ex tendingabout its periphery, said driven member also having a plurality ofrecesses arranged along said groove, said driving member also having agroove extending about its periphery, a portion of said groove beingdepressed, a pair of rotary members arranged beneath said driven memberinter mediate said driven member and said driving member and adapted tomove substan tially along a plane containing the axes of said drivingand driven members, one of said rotary members adapted to rotate in thegroove in said driven member, the other of said rotary members adaptedto rotate in the groove in said driving member, the

rotary member engaging said driven member adapted to be moved into andout of the recesses in said member bythe alternate presentation of theelevated and depressed portion ofthe groove in said driving mem ber toits rotary member, a separator interposed between said rotary membersadapted to be moved transversely of said plane to move said rotarymembers intotheir respective grooves, and means adapted to adjust saidseparator.

13. An apparatus of the class described having, in combination, a drivenmember, a driving member adapted to impart an intermittent rotary motionto said driven member, said driven member having a groove extendingabout its periphery, said driven. member also having a plurality ofrecesses arranged along said groove, said driving member also having agroove extending about its periphery, a portion of said groove beingdepressed, a pair of rotary members arranged beneath said driven memberintermediate said driven member and said driving member and adapted tomove substantialiy along a plane containing the axes of said driving anddriven members, one oi said rotary members adapted to rotate in thegroove in said driven member, the other of said rotary members adaptedto rotate in the groove in said driving member, the retary memberengaging said driven member adapted to be moved into and out of therecesses in said member by the alternate presentation of the elevatedand depressed portion of the groove in said driving member to its rotarymember, a slide arranged to move substantially at right angles to saidplane, a wedge-shaped separator p-ivotallr secured to said slide andinterposed between said rotary members and adapted to be operated bysaid slide to move said rotary members into their respective grooves,and means adapted to adjust said slide.

In testimony whereof We have hereunto set our hands in presence of twosubscribing Witnesses.

JOHN J. HESSE. LUCIAN STANEK. lVitnesses CHARLES S, GOODING, SYDNEY E.Tar'r.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington D. C.

